Periodic climate oscillations

Guest essay by: Horst-Joachim Lüdecke, EIKE, Jena, Germany Alexander Hempelmann, Hamburg Observatory, Hamburg, Germany Carl Otto Weiss, Physikalisch-Technische Bundesanstalt Braunschweig, Germany In a recent paper [1] we Fourier-analyzed central-european temperature…

Correlation, filtering, systems and degrees of freedom

Guest post by Richard Saumarez Correlations are often used to relate changes in climate variables in order to establish a potential relationship between them. These variables may have been processed…